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[Pathogenesis of cardiovascular disorders in acute experimental arterial obstruction]
Kardiologiia
|April 1, 1983
Insights
Toxic myocardial agents enter blood flow after aortic trifurcation occlusion and reperfusion. Earlier reperfusion (9 vs. 12 hours) in dogs amplified these toxic effects, indicating unique recovery dynamics in ischemic limbs.
Area of Science:
- Cardiovascular Physiology
- Toxicology
- Ischemia-Reperfusion Injury
Context:
- Acute occlusion of the aortic trifurcation can lead to limb ischemia.
- Reperfusion following ischemia can trigger systemic effects.
- Myocardial toxicity is a potential complication of reperfusion injury.
Purpose:
- To investigate the appearance of myocardial toxic agents in systemic circulation after aortic trifurcation occlusion and reperfusion.
- To determine the influence of ischemia duration on the severity of myocardial toxic effects.
Summary:
- Toxic agents causing myocardial effects were detected in systemic blood flow after acute aortic trifurcation occlusion and subsequent limb reperfusion.
- The most significant toxic effects were observed in dogs where limb ischemia lasted nine hours compared to twelve hours.
- This suggests that the specific characteristics of circulation recovery in the ischemic area play a crucial role.
Impact:
- Highlights the potential for systemic toxicity following limb ischemia and reperfusion.
- Provides insights into the temporal dynamics of toxic agent release during reperfusion.
- Informs understanding of ischemia-reperfusion injury and its cardiovascular consequences.
Abstract:
Agents producing toxic myocardial effects are shown to appear in systemic blood flow as a result of acute occlusion of aortal trifurcation with subsequent recovery of blood flow in the limbs. The most pronounced effect was noted following blood infusion in dogs whose ischemia of the limbs had lasted for nine hours, instead of twelve, which must be due to specific features of circulation recovery in the ischemic area.